<template>
  <div>
    <h1>sonC</h1>
    <button @click="test">触发兄弟的</button>
  </div>
</template>

<script>
import eventBus from "../utils/eventBus";
export default {
  methods: {
    test() {
      eventBus.$emit("lele", "一家的");
    },
  },
};
</script>

<style lang="scss" scoped>
</style>